Honeywell MC-TAIH23 80366195-175 Analog Input FTA

Product Overview

The Honeywell MC-TAIH23 80366195-175 functions as a field termination assembly for analog input signals. This FTA board organizes wiring connections between field transmitters and the main I/O module. It provides a structured interface for 16 differential analog channels. The unit mounts inside Honeywell Series C cabinets for neat signal routing.

Technical Specifications

Parameter	Specification
Model Number	MC-TAIH23 80366195-175
Product Type	Analog Input Field Termination Assembly
Number of Channels	16 differential inputs
Signal Support	4–20 mA, 1–5 VDC
Terminal Type	Screw-clamp barrier strip
Wire Gauge	14–22 AWG
Built-in Resistors	250 Ω for current loops
Termination Points	32 screw terminals (16 pairs)
Operating Temperature	0°C to 60°C
Storage Temperature	–40°C to 85°C
Humidity	5% to 95% non-condensing

Physical Dimensions and Construction

This board measures 215 mm in width, 165 mm in depth, and 45 mm in height. The assembly weighs approximately 0.55 kg. It features a rigid PCB construction with gold-plated edge connectors. The board mounts vertically on DIN rails or directly onto cabinet backplates. Each channel includes two clearly labeled termination points for positive and negative leads. The layout uses color-coded terminal blocks for rapid identification during wiring.

Electrical Interface and Connectivity

A 50-pin ribbon cable connector links this FTA to the corresponding analog input module. The board then distributes these signals to 16 pairs of screw-clamp terminals. Each pair accommodates solid or stranded wire from 14 to 22 AWG. The board includes factory-installed 250 Ω precision resistors for current loop configurations. You can bypass these resistors for voltage signal applications through simple jumper placement. This design supports both 4–20 mA and 1–5 VDC field devices without additional hardware.

Signal Integrity and Noise Rejection

The MC-TAIH23 80366195-175 maintains signal integrity through careful PCB trace routing. The board separates analog signals from digital noise sources effectively. Twisted-pair wiring recommendations accompany each channel for optimal noise rejection. The terminal layout minimizes crosstalk between adjacent differential pairs. Moreover, the board includes shield termination points for cable screen grounding. These grounding points reduce common-mode interference in electrically noisy environments.

Installation and System Integration

You can install this FTA in any Honeywell Series C or TDC 3000 cabinet. The mounting holes align with standard DIN rail profiles for quick installation. The ribbon cable uses a keyed connector to prevent reversed orientation. Always route analog wiring separately from AC power or digital cables. For critical process measurements, implement shielded cables and single-point grounding practices. Verify that the jumper settings match your field device signal types before operation.

Environmental Compliance and Protection

This board meets RoHS requirements for restricted substance compliance. It also carries UL 508 and CSA C22.2 approvals for industrial control equipment. The conformal coating protects the PCB against moisture and particulate ingress. This coating prolongs the board’s service life in aggressive industrial settings.